6211-2ZNR
6200 Series Snap Ring Bearings
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Basic Information
Main Dimensions
Outer Ring Dimensions
Performance
Materials
Environment & Compliance
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6211-2ZNR Bearing Product Overview & Core Advantages
The 6211-2ZNR is a single row deep groove ball bearing engineered for exceptional performance in demanding applications. This shielded bearing features an integral snap ring on its outer ring, enabling simplified axial location within a housing. Manufactured from high-grade chrome steel and pre-lubricated with grease, it delivers reliable operation, high limiting speed, and robust radial load capacity. Its compact design and P0 tolerance class make it an ideal, cost-effective solution for a wide range of industrial machinery requiring precision and durability.
Model Code Breakdown
| Code Segment | Technical Meaning | Significance |
|---|---|---|
| 6211 | Basic Bearing Series & Size | Denotes a standard metric, single row deep groove ball bearing with a 55mm bore, 100mm OD, and 21mm width. |
| 2Z | Shielded on Both Sides | Provides effective protection against contamination while allowing for high-speed operation with minimal friction. |
| NR | Snap Ring Groove with Snap Ring | The outer ring has a groove and is supplied with a fitted snap ring, facilitating secure and straightforward axial positioning. |
6211-2ZNR Bearing Structural Features & Performance Benefits
- Robust Construction & High Load Capacity: The single row deep groove raceway and chrome steel construction provide a high radial dynamic load rating of 10,386 lbf and a static load rating of 6,519 lbf, ensuring longevity under significant stress.
- Integrated Snap Ring for Simplified Assembly: The snap ring (fitted) eliminates the need for complex housing shoulders or end caps, reducing assembly time and cost while providing reliable axial location.
- Shielded & Pre-Lubricated for Low Maintenance: The non-contact ZZ shields protect the bearing interior from dust and debris. Pre-lubrication with grease ensures immediate, maintenance-free operation upon installation within the specified temperature range of -30°C to 120°C.
- High-Speed Capability: The combination of a low-friction stainless steel cage, optimized internal geometry, and effective shielding contributes to a high limiting speed of 7,000 rpm.
6211-2ZNR Bearing Typical Application Areas
The 6211-2ZNR is ideally suited for applications requiring reliable performance with easy installation. Common uses include:
- Electric Motors and Gearboxes
- Industrial Fans and Blowers
- Material Handling Equipment (e.g., conveyor pulleys)
- Agricultural Machinery
- Automotive Components (e.g., alternators, idlers)
